Question

我正在iPad上为孩子们制作一些拼图游戏。

这个代码适用于3个谜题，但是我重复了很多代码，我想知道如何更改代码，以便可以使用类文件。希望有人能帮助我。

var puzzel1:Array = [p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, p12, p13, p14, p15, p16];
var puzzel1k:Array = [t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15, t16];

for each(var current_piece:MovieClip in puzzel1){
    current_piece.visible = true;
    current_piece.addEventListener(MouseEvent.MOUSE_DOWN, drag_piece_puzzel1);
    current_piece.addEventListener(MouseEvent.MOUSE_UP, stop_piece_puzzel1);
}

for each(var target_piece:MovieClip in puzzel1k){
    target_piece.visible = true;
}

//alle pieces van puzzel 1 worden hiermee gedragd
function drag_piece_puzzel1(e: MouseEvent): void {
    current_piece = MovieClip(e.currentTarget);
    current_piece.startDrag();
    current_piece.scaleX = 0.85;
    current_piece.scaleY = 0.85;
    addChild(current_piece);
    if(current_piece == p1){target_piece = t1;}
    if(current_piece == p2){target_piece = t2;}
    if(current_piece == p3){target_piece = t3;}
    if(current_piece == p4){target_piece = t4;}
    if(current_piece == p5){target_piece = t5;}
    if(current_piece == p6){target_piece = t6;}
    if(current_piece == p7){target_piece = t7;}
    if(current_piece == p8){target_piece = t8;}
    if(current_piece == p9){target_piece = t9;}
    if(current_piece == p10){target_piece = t10;}
    if(current_piece == p11){target_piece = t11;}
    if(current_piece == p12){target_piece = t12;}
    if(current_piece == p13){target_piece = t13;}
    if(current_piece == p14){target_piece = t14;}
    if(current_piece == p15){target_piece = t15;}
    if(current_piece == p16){target_piece = t16;}
}



function stop_piece_puzzel1(e: MouseEvent): void {

    current_piece.stopDrag();

    if (target_piece.hitTestObject(current_piece)) {
        current_piece.scaleX = 1;
        current_piece.scaleY = 1;
        current_piece.x = target_piece.x;           
        current_piece.y = target_piece.y;
        if (array_pieces.indexOf(current_piece) == -1) {
            counter = counter +1;
            puzzlepiece = current_piece;
            array_pieces.push(this["puzzlepiece"]);
            }
    }
}

Answer 1

有很多方法可以做到这一点，但这是一个快速的方法，基于你的puzzel1和puzzel1k数组排成一行：

所有这样的行： if(current_piece == p1){target_piece = t1;}

可以替换为以下几行：

var current_piece_index:int = puzzel1.indexOf(current_piece); target_piece = puzzel1k[current_piece_index];

另一种解决方案是使用类似数组的Dictionary，但不是处于[0]和[4]之类的位置，键是其他对象。

要设置它，你将遍历你的数组，使用作为键的片段和作为相关值的目标，如下所示：

var targetsByPieces:Dictionary = new Dictionary(); for(var i:uint = 0; i<puzzel1.length; i++){ targetsByPieces[puzzel1[i]] = puzzel1k[i]; }

然后要使用它，您只需查找目标，以便将所有if(current_piece == p1){target_piece = t1;}代码替换为一行：

target_piece = targetsByPieces[current_piece];

这些解决方案都没有处理可能没有匹配的目标 - 但通常拼图没有“备件”所以我想这对你来说不是问题。

如何在类文件中更改as3代码

1 个答案: